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I really appreciate it! Il call them today or tomorrow. Im going in to work tonight so il take a look at it then, we build chrome plating racks and from looking at the part online i think i could easily fix or make replacement parts for it. The hardest part to find is the knob for the front, when i call miller il ask if they have any or any idea where to get one. Then il get a 220 v wired to the garage (anyone have estimate of cost..?) and pick up a tank of 75/25 and test this baby out . Not bad for a first mig.. especially for free.

I looked at the online parts list, and the PN wasn't listed for the MM200 gun. The M-25 for my MM210 is PN 169596

Looks like it has got the voltage selector knob on it already. If it is not changing then it likely has a broken roll pin (easy fix) or then nut has come off the back side (easy too). Pull the cover and see what is happening when you turn the knob.